ABSTRACT

This project is mainly focused on aiding the speech impaired and paralyzed patients. My work helps in improving the communication with the deaf and dumb using push buttons technology. A system is developed that can translate different signs Language to corresponding text. About 5 million people in the world come into this category which is quite large number to be ignored. Push button placed on hand gloves pick up gestures and translate that to text data with the help of Analog to Digital converter and microcontroller. The main aim of the system is to develop a cheap glove that disabled people can use for communication. When the gesture of an alphabet or word is made respective alphabet or word is shown on the LCD. Sign language is prevalent amongst the deaf, dumb or blind individuals. With the conventional sign language not acknowledged to the signers, it affects their interpersonal relationships in the society in an adverse manner. A sophisticated method is required as deaf-dumb people use sign language for their communication which is difficult to understand by the normal people.

Key Words: Sensor, Gesture, LCD, microcontroller, Bluetooth, Push button.

CHAPTER ONE

 GENERAL INTRODUCTION

This chapter gives an introduction to our project. Here, we will look at the background of the study, statement of problem, purpose of the study, hypotheses, and significance of the study, scope of the study, definition of terms and organization of the work

1.1. Background of Study

Communication is of paramount importance in today’s data driven society. Shopping at a supermarket, asking for directions, medical diagnosis, or even national security depend on reliable communication. To the average person, everyday routines such as greetings or having dinner with a friend would be difficult without the ability of speaking in order to convey ideas.

Sign language is a way by which the gestures made by the user are used for communication. Human gestures are an efficient and powerful way of interaction. These are sometimes used to express ourselves. This project focuses on developing a speaking aid for deaf and dumb using this gesture recognition technique. In this system, the gestures are converted into text messages for communication (Abinayaa, and  Jayan, 2014). The basic idea is by using glove-type sensor for deaf and dumb. Five push button are normally attached to the glove. When a push button is bent there is a decrease in it resistance with respect to the angle, which is recorded by the ADC of the microcontroller. Sign language is a language through which communication happens without the means of acoustic sounds. It relies on sign patterns like orientation and movements of the arm that aids in communication between individuals. A gesture in a sign language can be defined as a movement of part of the body, mainly hand or the head, to express an idea or meaning. Facial expressions also count toward the gesture, at the same time. A sign language usually provides signs for whole words or letters (Anil K. et al,2007),A sign language editing apparatus includes a glove-type sensor that converts movement of fingers in the sign language into an electrical signal to produce time series data of sign language words. Deaf people have used sign languages throughout the past.

1.2. Statement of the Problem

Presently there are no gloves available in the market that can teach sign language, but research has been done to make sign language gloves that can interpret gestures and convert them to speech. The goal of this project was to create a glove device that detects sign language gestures for letters used in international Sign Language and some commonly used word. To convert it into text messages, which is been transfer to an android phone, where an android app is used to voice out the letter or word.

1.3. Research Questions

• How can a deaf express or explain his worries to someone who doesn’t master sign language.
• What are the difficulties encountered when communicating with a deaf or dumb?
• What can be done to ease communication between a deaf and normal person?

1.4. Research Hypothesis      

• With the help of a hand talk assistive system dumb and deaf will be able to express them selves
• Deaf and dumb find difficulties expressing themselves with other people like the normal and the blind this devise will help solve such